AXLE IDENTIFICATION CODES CONT D INDICATES POSITRACTION 1984 2 41 RATIO GU1 OPTION 2 56 RATIO GM8 OPTION 2 73 RATIO GU2 OPTION CODE RING GEAR CODE RING GEAR CODE RING GEAR 8GF 7 50 4YF 8 50 420 8 50 4ZN 8 50 4YT 8 50 4YB 8 50 4YP 8 50 8GB 7 50 2 93 RATIO GU3 OPTION 3 08 RATIO GU4 OPTION 3 23 RATIO GU5 OPTION CODE RING GEAR CODE RING GEAR CODE RING GEAR 4YC 8 50 4ZA 8 50 4YE 8 50 8GG 7 50 4ZS 8 50 4YS 8 50 4ZR 8 50 4YD 8 50 4ZT 8 50 4YR 8 50 4ZB 8 50 D 2 73 RATIO GU2 OPTION 2 93 RATIO GW9 OPTION 3 08 RATIO GU4 OPTION CODE RING GEAR CODE RING GEAR CODE RING GEAR 4DV 8 50 4DW 8 50 4DG 8 50 8FC 7 50 4DX 8 50 BFB 7 50 3 23 RATIO GU5 OPTION CODE RING GEAR 4DH 8 50 4DY 8 50 FINAL DRIVE E 2 93 RATIO F45 OPTION 2 73 RATIO F47 OPTION 3 15 RATIO F57 OPTION CODE CODE CODE MK ML MM 3 36 RATIO FW4 OPTION CODE MN 1991 GENERAL MOTORS SERVICE PARTS OPERATIONS OLDSMOBILE 32W 5 000 5 10 6 91